Cheap flights from Ottawa to Las Vegas from $109

The month of May is, on average, the cheapest month to fly to Las Vegas from Ottawa, with most prices found around $265. The month of June is another great option to travel to Las Vegas, with average flight prices from Ottawa averaging around $280.

Our data shows that Wednesday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $197. Flights from Ottawa to Las Vegas on a Monday will generally be more expensive and average around $323. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

The cheapest time of day to fly to Las Vegas is in the morning when flights can be purchased for as low as $300. Flights to Las Vegas are more costly in the afternoon, with an average ticket price of $315. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Ottawa to Las Vegas Harry Reid Intl for the best Ottawa - Las Vegas Harry Reid Intl flight prices

You are more likely to see cheaper flights to Las Vegas from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $336 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Ottawa for as low as $265 on momondo.

There is only 1 cabin class available to choose from on Ottawa to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 9% on your flight if you consider stops on a Ottawa to Las Vegas flight.

As of March 2026, prices for Ottawa to Las Vegas flights are approximately 27% more expensive when compared to flights at the same time last year.

WestJet and United Airlines are the most popular carriers operating from Ottawa to Las Vegas Harry Reid Intl

Air Canada, Porter Airlines and WestJet are the top three most popular airlines that fly to Las Vegas from Ottawa according to our data. Air Canada is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Las Vegas. Keep in mind that there are 5 different airlines that fly to Las Vegas on a routine basis, so you have a few additional options to choose from.

Historically, on average around 30% of flights between Ottawa and Las Vegas have experienced a delay on any given week. The average delay length over the past 12 months has been 149 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Friday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, Porter Airlines have had the least number of delays on this route over the last 12 months; with about 30% of their flights experiencing any sort of delay.